20.9% is the change from 445 to 538
Calculation steps:
[( 538 - 445 ) ÷ 445] x 100 = 20.9%
Formula
Percentage change = [(538 - 445) / 445] x 100
Subtract the new number by the original number
538 - 445 = 93
93 ÷ 445 = 0.20898876404494382
0.20898876404494382 x 100 = 20.9%